April 3rd, 2011, 08:34 AM  #1 
Newbie Joined: Oct 2010 Posts: 27 Thanks: 0  Geometry proof
We have triangle ABC. Midpoints of BC, CA and AB are K, L, M respectively. Prove that angles AMC and BLC are equally big if and only if angles CAK and BCM are equally big. I am uploading attachment with one example. 
April 3rd, 2011, 03:24 PM  #2 
Newbie Joined: Oct 2010 Posts: 27 Thanks: 0  Re: Geometry proof
So no one is even trying??? 
April 14th, 2011, 01:26 AM  #3 
Global Moderator Joined: Dec 2006 Posts: 20,113 Thanks: 1909 
I haven't had time to look at this problem in detail (I may have time over the weekend), but my guess would be that what you want to prove is false. Where did you get this problem from?


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